What is "kpengla"

Kpengla was a King of the Kingdom of Dahomey, in present-day Benin, from 1774 until 1789. Kpengla followed his father Tegbessou to the throne and much of his administration was defined by the increasing Atlantic slave trade and regional rivalry over the profits from this trade. His attempts to control the slave trade generally failed, and when he died of smallpox in 1789, his son Agonglo came to the throne and ended many of his policies.